US537463A - Composite steel plate - Google Patents

Composite steel plate Download PDF

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Publication number
US537463A
US537463A US537463DA US537463A US 537463 A US537463 A US 537463A US 537463D A US537463D A US 537463DA US 537463 A US537463 A US 537463A
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Prior art keywords
steel
plate
iron
steel plate
mass
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/34Laser welding for purposes other than joining
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/32Bonding taking account of the properties of the material involved
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/10Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/50Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S16/00Miscellaneous hardware, e.g. bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance
    • Y10S16/18Composition handles
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00Stock material or miscellaneous articles
    • Y10S428/922Static electricity metal bleed-off metallic stock
    • Y10S428/9335Product by special process
    • Y10S428/939Molten or fused coating
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771Transition metal-base component
    • Y10T428/12861Group VIII or IB metal-base component
    • Y10T428/12951Fe-base component
    • Y10T428/12958Next to Fe-base component
    • Y10T428/12965Both containing 0.01-1.7% carbon [i.e., steel]

Definitions

  • the object of my invention is to prepare slabs or plates having a hard resisting surface, and a softer and more yielding backing, an object which I attain in the manner hereinafter set forth, reference being had to the accompanying drawings, in which the three figures represent successive stages in the preparation of a plate in accordance with my invention.
  • Figure l isa sectional view of the plate at the end of the first stage; Fig. 2, a similar View at the end of the second stage, and Fig. 3, a similar view at the end at the third and last stage.
  • abody of steel A may be first run into the bottom of a mold, and the body of cast iron B may then be poured in directly upon the top of this mass of steel, the greater specific gravity of the latter being relied upon to prevent the disturbance of the same by the pouring of the iron on top of it, although it will be preferable to permit the steel to partially cool before pouring the iron into the mold, the steel, however, still retaining a high degree of heat when the iron is brought into contact with it, or a steel plate,
  • V may be iirst highly heated and then introduced into the mold in order. to provide a base upon which to pour the mass of cast iron.
  • the cast iron portion of the block is subjected to any of the ordinary convertingopcrations whereby partial decarbonization of the iron can be effected and the same reduced to a condition for being hardened and tempered, the composite plate at this stage being represented in Fig. 2, where the converted portion of the plate is represented atB.
  • the iron portion of the composite plate may be subjected to any of the usual cementation processes and may be afterward hardened or tempered in any ordinary manner throughout either the whole or a part of its mass, as shown in Fig.
  • the mass of steel forming the backing for the mass of iron being protected from injury or change during such converting, hardening and tempering operations, so that it preserves its original character and provides a backing for the hardened or tempered face of the plate.
  • Myinvention is of special advantage in the manufatnre of armor plates or armor piercing projectiles, lthe latter having an outer surface of hardened steel and an interior core or heart of soft steel.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)

Description

J. A. HUNTER. TTTTTTTTTTTTTTTTTT E.
' Ffc.
. JZ I UNTTRD STATES FFICE.
JOI-IN A. HUNTER, OF PHILADELPHIA, PENNSYLVANIA.
COMPOSITE VSTEEL PLATE.
SPECIFICATION forming part of Letters Patent No. 537,463, dated April 16, 1895.
Application led November 13, 1893. Serial No( 490,787. (No model.)
To @ZZ whom it may concern.:
Be it known that I, JOHN A. HUNTER, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Composite Steel Plates, cbc., of which the following is a specification.
The object of my invention is to prepare slabs or plates having a hard resisting surface, and a softer and more yielding backing, an object which I attain in the manner hereinafter set forth, reference being had to the accompanying drawings, in which the three figures represent successive stages in the preparation of a plate in accordance with my invention.
Figure l isa sectional view of the plate at the end of the first stage; Fig. 2, a similar View at the end of the second stage, and Fig. 3, a similar view at the end at the third and last stage.
In carrying out my invention I first produce, by casting or otherwise, a soft steel plate and then, While the the same is highly heated, cast upon the face of the same alayer of iron, which is afterward subjected to any of the usual processes whereby partial decarbonization of the same is effected forthe purpose of convertingit into steel capable of being hardened and tempered, and is finally tempered throughout the Whole or a part of its mass. By this means I am enabled to produce a plate havinga surface of any desired degree of hardness and a back of softer metal the two being rmly united,'for it has been found in practice that by casting the mass of iron upon the face of a body of highly heated steel, an intimate union of the two bodies is effected and a homogeneous block or plate is produced.
In carrying out my invention abody of steel A may be first run into the bottom of a mold, and the body of cast iron B may then be poured in directly upon the top of this mass of steel, the greater specific gravity of the latter being relied upon to prevent the disturbance of the same by the pouring of the iron on top of it, although it will be preferable to permit the steel to partially cool before pouring the iron into the mold, the steel, however, still retaining a high degree of heat when the iron is brought into contact with it, or a steel plate,
slab or block produced in any available manner Vmay be iirst highly heated and then introduced into the mold in order. to provide a base upon which to pour the mass of cast iron.
"When the composite block such as shown in Fig. 1 has become cold, or sufficiently cool to permit handling, the cast iron portion of the blockis subjected to any of the ordinary convertingopcrations whereby partial decarbonization of the iron can be effected and the same reduced to a condition for being hardened and tempered, the composite plate at this stage being represented in Fig. 2, where the converted portion of the plate is represented atB. For carrying out this part of the process I may resort to the treatment set forth in my Patent No. 498,062, dated May 23, 1893, or `the iron portion of the composite plate may be subjected to any of the usual cementation processes and may be afterward hardened or tempered in any ordinary manner throughout either the whole or a part of its mass, as shown in Fig. 3, where the hardened ortempered portion of the plate is represented at B2, the mass of steel forming the backing for the mass of iron being protected from injury or change during such converting, hardening and tempering operations, so that it preserves its original character and provides a backing for the hardened or tempered face of the plate. Myinvention is of special advantage in the manufatnre of armor plates or armor piercing projectiles, lthe latter having an outer surface of hardened steel and an interior core or heart of soft steel.
Having thus described my invention, I claim and desire to secure by Letters Patent-T- The mode herein described of producing plates, blocks, or other articles having a hardened steel face, with a soft steel backing, said mode consisting in casting a mass of iron upon a backing of steel, converting said cast iron mass into steel capable of being hardened or tempered, and then hardening or tempering the same, substantially as specified.
In testimony whereof I have signed my name to this specication in the presence of two subscribing Witnesses.
JNO. A. HUNTER.
Titnessesz WILLIAM A. BARR, JosErH H'. KLEIN.
Sio
US537463D Composite steel plate Expired - Lifetime US537463A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474682A (en) * 1941-05-21 1949-06-28 Liebowitz Benjamin Composite steel plate
US2515191A (en) * 1946-08-29 1950-07-18 Babcock & Wilcox Co Method of joining metals
US4417615A (en) * 1980-12-22 1983-11-29 Air Preheater Company, Inc. Cast iron recuperator
US5509459A (en) * 1994-09-28 1996-04-23 The United States Of America As Represented By The Secretary Of The Navy Pressure cast alumina tile reinforced aluminum alloy armor and process for producing the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474682A (en) * 1941-05-21 1949-06-28 Liebowitz Benjamin Composite steel plate
US2515191A (en) * 1946-08-29 1950-07-18 Babcock & Wilcox Co Method of joining metals
US4417615A (en) * 1980-12-22 1983-11-29 Air Preheater Company, Inc. Cast iron recuperator
US5509459A (en) * 1994-09-28 1996-04-23 The United States Of America As Represented By The Secretary Of The Navy Pressure cast alumina tile reinforced aluminum alloy armor and process for producing the same

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